Prompt
I'm building a prototype agent fast, what is the easiest builder?
Latest observation
Oct 9, 2026
OpenAI APIWeb search: off
If you want the fastest/easiest way to build a prototype agent, the best choice depends on how much coding you want to do:
Easiest no/low-code options
- Dify — probably the easiest if you want a quick agent/app prototype with UI, prompt flow, tools, and basic memory.
- Flowise — very easy if you like a visual, drag-and-drop LangChain-style builder.
- Langflow — similar to Flowise, good for quickly wiring LLMs, tools, and retrieval.
Easiest if you’re okay writing a little code
- OpenAI API + simple Python/JS — usually the fastest for a real prototype if you want control and minimal setup.
- CrewAI / AutoGen — good if your “agent” is more multi-agent/task-based, but a bit more opinionated.
My quick recommendation
- Want no-code-ish and fastest UI prototype? → Dify
- Want a visual builder and flexibility? → Flowise
- Want the quickest serious prototype in code? → OpenAI API directly
If you tell me:
- No-code or code?
- What the agent should do
- Do you need tools/files/web search?
…I can recommend the single best builder for your use case.